I just had a pleasant hallway chat with Greg Zeimann, touching on aspects of tons of different data analysis themes for spectroscopy, including spectrogram forward modeling. Greg shared his experience and enumerated various instrumental effects that make forward modeling spectrograms so difficult. Lots of effects begin to matter that the few tens of counts level, and writing those down will be daunting.
This reaffirmed my feeling that a true digital twin should be destined for future spectrographs, where the in-lab detector testing and metrology can reveal and quantify all of these effects, and those products can be saved in a re-usable format. Specifically, the digital twin would start at that early stage, with a PyTorch (or equivalent) function made to be simulate all of those effects before any starlight even hits the detector.
I just had a pleasant hallway chat with Greg Zeimann, touching on aspects of tons of different data analysis themes for spectroscopy, including spectrogram forward modeling. Greg shared his experience and enumerated various instrumental effects that make forward modeling spectrograms so difficult. Lots of effects begin to matter that the few tens of counts level, and writing those down will be daunting.
This reaffirmed my feeling that a true digital twin should be destined for future spectrographs, where the in-lab detector testing and metrology can reveal and quantify all of these effects, and those products can be saved in a re-usable format. Specifically, the digital twin would start at that early stage, with a PyTorch (or equivalent) function made to be simulate all of those effects before any starlight even hits the detector.